├── .gitignore
├── README.md
├── package.json
├── public
    ├── favicon.ico
    ├── index.html
    └── manifest.json
├── src
    ├── App.css
    ├── App.js
    ├── App.test.js
    ├── components
    │   ├── LoginForm.js
    │   ├── NotFound.js
    │   ├── Profile.js
    │   ├── ProtectedRoute.js
    │   └── Router.js
    ├── config
    │   └── app.json
    ├── helper.js
    ├── images
    │   ├── login-validation1.png
    │   ├── login-validation2.png
    │   └── profile-page.png
    ├── index.css
    ├── index.js
    ├── logo.svg
    └── serviceWorker.js
└── yarn.lock


/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | /.pnp
 6 | .pnp.js
 7 | 
 8 | # testing
 9 | /coverage
10 | 
11 | # production
12 | /build
13 | 
14 | # misc
15 | .DS_Store
16 | .env.local
17 | .env.development.local
18 | .env.test.local
19 | .env.production.local
20 | 
21 | npm-debug.log*
22 | yarn-debug.log*
23 | yarn-error.log*
24 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # React WPGraphQL JWT Authentication with Apollo Client
 2 | 
 3 | ## Screenshots
 4 | 
 5 | ![Login validation 1](https://github.com/hussain-t/react-wp-graphql-auth/blob/master/src/images/login-validation1.png)
 6 | ![Login validation 2](https://github.com/hussain-t/react-wp-graphql-auth/blob/master/src/images/login-validation2.png)
 7 | ![Profile page](https://github.com/hussain-t/react-wp-graphql-auth/blob/master/src/images/profile-page.png)
 8 | 
 9 | ## Prerequisites
10 | 
11 | Install and active the following plugins in your WordPress backend:
12 | 
13 | 1. [WPGraphQL](https://github.com//wp-graphql/wp-graphql)
14 | 2. [WPGraphQL JWT Authentication](https://github.com/wp-graphql/wp-graphql-jwt-authentication)
15 | 
16 | **Note: Follow the instructions given by [WPGraphQL](https://github.com//wp-graphql/wp-graphql) author to avoid exceptional behaviors.**
17 | 
18 | 
19 | This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
20 | 
21 | ## Run the project
22 | 
23 | In the project directory, you can run:
24 | 
25 | ### `npm start`
26 | 
27 | Runs the app in the development mode.<br>
28 | Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
29 | 
30 | The page will reload if you make edits.<br>
31 | You will also see any lint errors in the console.
32 | 
33 | ### Change WordPress URL
34 | 
35 | Go to `app.json` file and change the `siteUrl` value to yours.
36 | 
37 | ## Covered features:
38 | 
39 | 👉 Client side form validations<br>
40 | 👉 Server side form validations<br>
41 | 👉 WordPress Authentication (login) with WPGraphQL<br>
42 | 👉 [Apollo GraphQL Client](https://www.apollographql.com/) for handling GraphQL mutation<br>
43 | 👉 Protected route with [React Router](https://reacttraining.com/react-router/)
44 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "react-wp-graphql-auth",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "dependencies": {
 6 |     "apollo-boost": "^0.3.1",
 7 |     "axios": "^0.18.0",
 8 |     "bootstrap": "^4.3.1",
 9 |     "graphql": "^14.1.1",
10 |     "react": "^16.8.3",
11 |     "react-apollo": "^2.5.1",
12 |     "react-bootstrap": "^1.0.0-beta.5",
13 |     "react-dom": "^16.8.3",
14 |     "react-router-dom": "^4.3.1",
15 |     "react-scripts": "2.1.5"
16 |   },
17 |   "scripts": {
18 |     "start": "react-scripts start",
19 |     "build": "react-scripts build",
20 |     "test": "react-scripts test",
21 |     "eject": "react-scripts eject"
22 |   },
23 |   "eslintConfig": {
24 |     "extends": "react-app"
25 |   },
26 |   "browserslist": [
27 |     ">0.2%",
28 |     "not dead",
29 |     "not ie <= 11",
30 |     "not op_mini all"
31 |   ]
32 | }
33 | 


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/public/favicon.ico:
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https://raw.githubusercontent.com/hussain-t/react-wp-graphql-auth/8a6d36beecbc1007fccda6f3dbabe1507ec7ba00/public/favicon.ico


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/public/index.html:
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 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8" />
 5 |     <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
 6 |     <meta
 7 |       name="viewport"
 8 |       content="width=device-width, initial-scale=1, shrink-to-fit=no"
 9 |     />
10 |     <meta name="theme-color" content="#000000" />
11 |     <!--
12 |       manifest.json provides metadata used when your web app is installed on a
13 |       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
14 |     -->
15 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
16 |     <!--
17 |       Notice the use of %PUBLIC_URL% in the tags above.
18 |       It will be replaced with the URL of the `public` folder during the build.
19 |       Only files inside the `public` folder can be referenced from the HTML.
20 | 
21 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
22 |       work correctly both with client-side routing and a non-root public URL.
23 |       Learn how to configure a non-root public URL by running `npm run build`.
24 |     -->
25 |     <link
26 |       rel="stylesheet"
27 |       href="https://maxcdn.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css"
28 |       integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS"
29 |       crossorigin="anonymous"
30 |     />
31 |     <title>React App</title>
32 |   </head>
33 |   <body>
34 |     <noscript>You need to enable JavaScript to run this app.</noscript>
35 |     <div id="root"></div>
36 |     <!--
37 |       This HTML file is a template.
38 |       If you open it directly in the browser, you will see an empty page.
39 | 
40 |       You can add webfonts, meta tags, or analytics to this file.
41 |       The build step will place the bundled scripts into the <body> tag.
42 | 
43 |       To begin the development, run `npm start` or `yarn start`.
44 |       To create a production bundle, use `npm run build` or `yarn build`.
45 |     -->
46 |   </body>
47 | </html>
48 | 


--------------------------------------------------------------------------------
/public/manifest.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "short_name": "React App",
 3 |   "name": "Create React App Sample",
 4 |   "icons": [
 5 |     {
 6 |       "src": "favicon.ico",
 7 |       "sizes": "64x64 32x32 24x24 16x16",
 8 |       "type": "image/x-icon"
 9 |     }
10 |   ],
11 |   "start_url": ".",
12 |   "display": "standalone",
13 |   "theme_color": "#000000",
14 |   "background_color": "#ffffff"
15 | }
16 | 


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/src/App.css:
--------------------------------------------------------------------------------
 1 | .App {
 2 |   text-align: center;
 3 | }
 4 | 
 5 | .App-logo {
 6 |   animation: App-logo-spin infinite 20s linear;
 7 |   height: 40vmin;
 8 |   pointer-events: none;
 9 | }
10 | 
11 | .App-header {
12 |   background-color: #282c34;
13 |   min-height: 100vh;
14 |   display: flex;
15 |   flex-direction: column;
16 |   align-items: center;
17 |   justify-content: center;
18 |   font-size: calc(10px + 2vmin);
19 |   color: white;
20 | }
21 | 
22 | .App-link {
23 |   color: #61dafb;
24 | }
25 | 
26 | @keyframes App-logo-spin {
27 |   from {
28 |     transform: rotate(0deg);
29 |   }
30 |   to {
31 |     transform: rotate(360deg);
32 |   }
33 | }
34 | 


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/src/App.js:
--------------------------------------------------------------------------------
 1 | import React, { Component } from 'react';
 2 | import { ApolloProvider } from 'react-apollo'
 3 | import ApolloClient from 'apollo-boost';
 4 | 
 5 | import Router from './components/Router';
 6 | import { domain } from './config/app.json'
 7 | 
 8 | const client = new ApolloClient({
 9 |   uri: `${domain.env.siteUrl}/graphql`
10 | })
11 | 
12 | class App extends Component {
13 |   render() {
14 |     return (
15 |       <ApolloProvider client={client}>
16 |         <Router />
17 |       </ApolloProvider>
18 |     );
19 |   }
20 | }
21 | 
22 | export default App;
23 | 


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/src/App.test.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import App from './App';
 4 | 
 5 | it('renders without crashing', () => {
 6 |   const div = document.createElement('div');
 7 |   ReactDOM.render(<App />, div);
 8 |   ReactDOM.unmountComponentAtNode(div);
 9 | });
10 | 


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/src/components/LoginForm.js:
--------------------------------------------------------------------------------
  1 | import React, { Component } from 'react';
  2 | import { Form, Button, Alert } from 'react-bootstrap';
  3 | import { Mutation } from 'react-apollo';
  4 | import gql from 'graphql-tag';
  5 | 
  6 | import { AUTH_TOKEN } from '../helper';
  7 | 
  8 | const LOGIN_USER = gql`
  9 |   mutation LoginUser($username: String! $password: String!) {
 10 |     login(input: {
 11 |       clientMutationId: "uniqueId"
 12 |       username: $username
 13 |       password: $password
 14 |     }) {
 15 |       authToken
 16 |       user {
 17 |         id
 18 |         userId
 19 |         name
 20 |       }
 21 |     }
 22 |   }
 23 | `
 24 | 
 25 | class LoginForm extends Component {
 26 |   state = {
 27 |     validate: false,
 28 |     username: '',
 29 |     password: '',
 30 |     error: '',
 31 |   }
 32 |   _isMounted = false;
 33 | 
 34 |   componentDidMount() {
 35 |     this._isMounted = true;
 36 |   }
 37 | 
 38 |   componentWillUnmount() {
 39 |     this._isMounted = false;
 40 |   }
 41 | 
 42 |   handleLogin = async (event, login) => {
 43 |     event.preventDefault();
 44 |     const { username, password } = this.state;
 45 |     if(this._isMounted) {
 46 |       this.setState({ validate: true });
 47 |     }
 48 |     await login({ variables: { username, password } })
 49 |       .then(response => this.handleLoginSuccess(response))
 50 |       .catch(err => this.handleLoginFail(err.graphQLErrors[0].message))
 51 |   }
 52 |   
 53 |   handleLoginSuccess = response => {
 54 |     localStorage.setItem(AUTH_TOKEN, JSON.stringify(response.data.login));
 55 |     this.props.history.push('/profile');
 56 |     if(this._isMounted) {
 57 |       this.setState({
 58 |         validate: false,
 59 |         username: '',
 60 |         password: '',
 61 |         error: '',
 62 |       });
 63 |     }
 64 |     this.props.history.push('/profile');
 65 |   }
 66 | 
 67 |   handleLoginFail = err => {
 68 |     const error = err.split('_').join(' ').toUpperCase();
 69 | 
 70 |     if(this._isMounted) {
 71 |       this.setState({ 
 72 |         validate: true, 
 73 |         loading: false, 
 74 |         error ,
 75 |       });
 76 |     }
 77 |   }
 78 | 
 79 |   handleUsername = username => {
 80 |     this.setState({ username });
 81 |   }
 82 | 
 83 |   handlePassword = password => {
 84 |     this.setState({ password });
 85 |   }
 86 | 
 87 |   renderMessage(loading, error) {
 88 |     if (error) {
 89 |       return (
 90 |         <Alert variant="danger">
 91 |           {this.state.error}
 92 |         </Alert>
 93 |       )
 94 |     } else if (loading) {
 95 |       return (
 96 |         <Alert variant="primary">
 97 |           Loading...
 98 |         </Alert>
 99 |       )
100 |     }
101 |   }
102 | 
103 |   render() {
104 |     const { validate } = this.state;
105 |     return (
106 |       <Mutation mutation={LOGIN_USER}>
107 |         {(login, { loading, error }) => (
108 |           <div className="container">
109 |           <Form 
110 |             method="POST" 
111 |             noValidate
112 |             validated={validate}
113 |             onSubmit={(event) => this.handleLogin(event, login)}
114 |           >
115 |             <h2>React WPGraphQL Auth</h2>
116 |             <Form.Group controlId="username">
117 |               <Form.Label>Username</Form.Label>
118 |               <Form.Control 
119 |                 type="text" 
120 |                 required 
121 |                 placeholder="Username / Email"
122 |                 onChange={event => this.handleUsername(event.target.value)}
123 |                 value={this.state.username}
124 |               />
125 |               <Form.Control.Feedback type="invalid">Username cannot be empty!</Form.Control.Feedback>
126 |             </Form.Group>
127 |             <Form.Group controlId="password">
128 |               <Form.Label>Password</Form.Label>
129 |               <Form.Control 
130 |                 type="password" 
131 |                 required 
132 |                 placeholder="Password"
133 |                 onChange={event => this.handlePassword(event.target.value)}
134 |                 value={this.state.password}
135 |               />
136 |               <Form.Control.Feedback type="invalid">Password cannot be empty!</Form.Control.Feedback>
137 |             </Form.Group>
138 |             {this.renderMessage(loading, error)}
139 |             <Button variant="primary" type="submit">
140 |               Login
141 |             </Button>
142 |           </Form>
143 |         </div>
144 |         )}
145 |       </Mutation>
146 |     )
147 |   }
148 | }
149 | 
150 | export default LoginForm;
151 | 


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/src/components/NotFound.js:
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1 | import React from 'react'
2 | 
3 | const NotFound = () => (
4 |   <h1>404! Page not fount!!!!</h1>
5 | )
6 | 
7 | export default NotFound;
8 | 


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/src/components/Profile.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | 
 3 | import { AUTH_TOKEN, getUserSnippet } from '../helper';
 4 | 
 5 | const Profile = props => {
 6 |   const user = JSON.parse(localStorage.getItem(AUTH_TOKEN));
 7 |   
 8 |   return (
 9 |     <div className="container">
10 |       <div className="profile-container">
11 |         <div className="user-snippet">
12 |           <h1>{getUserSnippet(user.user.name)}</h1>
13 |         </div>
14 |         <h2>{user.user.name}</h2>
15 |         <button className="btn btn-primary" onClick={() => {
16 |           localStorage.removeItem(AUTH_TOKEN);
17 |           props.history.push('/');
18 |           }}
19 |         >
20 |         Log Out
21 |         </button>
22 |       </div>
23 |     </div>
24 |   )
25 | }
26 | 
27 | export default Profile;
28 | 


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/src/components/ProtectedRoute.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import { Route, Redirect } from 'react-router-dom';
 3 | 
 4 | import { AUTH_TOKEN } from '../helper';
 5 | 
 6 | const ProtectedRoute = ({ component: Component, ...rest }) => {
 7 |   const token = localStorage.getItem(AUTH_TOKEN);
 8 |   return (
 9 |     <Route
10 |       {...rest}
11 |       render={props => token ? (
12 |         <Component {...props} />
13 |       ) : (
14 |         <Redirect
15 |           to={{
16 |             pathname: "/",
17 |             state: {
18 |               from: props.location
19 |             }
20 |           }}
21 |         />
22 |       )  
23 |     }
24 |   />
25 |   )
26 | }
27 | 
28 | export default ProtectedRoute;


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/src/components/Router.js:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import { BrowserRouter, Route, Switch } from 'react-router-dom';
 3 | 
 4 | import LoginForm from './LoginForm';
 5 | import Profile from './Profile';
 6 | import NotFound from './NotFound';
 7 | import ProtectedRoute from './ProtectedRoute';
 8 | 
 9 | const Router = () => (
10 |   <BrowserRouter>
11 |     <Switch>
12 |       <Route exact path="/" component={LoginForm} />
13 |       <ProtectedRoute path="/profile" component={Profile} />
14 |       <Route component={NotFound} />
15 |     </Switch>
16 |   </BrowserRouter>
17 | )
18 | 
19 | export default Router;
20 | 


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/src/config/app.json:
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 1 | {
 2 |   "domain": {
 3 |     "env": {
 4 |       "siteUrl": "https://lexcampus.on-its-way.com/"
 5 |     }
 6 |   },
 7 |   "API": {
 8 |     "WP": "wp-json/",
 9 |     "JWT": "jwt-auth/v1/"
10 |   },
11 |   "endpoint": {
12 |     "token": "token/"
13 |   }
14 | }


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/src/helper.js:
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 1 | export const AUTH_TOKEN = window.location.host + '/AUTH_TOKEN';
 2 | 
 3 | export const getUserSnippet = username => {
 4 |   let initials = '';
 5 |   if (!username) {
 6 |     return initials;
 7 |   }
 8 | 
 9 |   const fullname = username.split(' ');
10 |   const initialLetters = fullname.map(name => name.substring(0, 1));
11 |   [initials] = initialLetters;
12 |   if (initialLetters[1]) {
13 |     initials  += initialLetters[1];
14 |   }
15 | 
16 |   return initials.toUpperCase();
17 | }


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/src/images/login-validation1.png:
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https://raw.githubusercontent.com/hussain-t/react-wp-graphql-auth/8a6d36beecbc1007fccda6f3dbabe1507ec7ba00/src/images/login-validation1.png


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/src/images/login-validation2.png:
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https://raw.githubusercontent.com/hussain-t/react-wp-graphql-auth/8a6d36beecbc1007fccda6f3dbabe1507ec7ba00/src/images/login-validation2.png


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/src/images/profile-page.png:
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https://raw.githubusercontent.com/hussain-t/react-wp-graphql-auth/8a6d36beecbc1007fccda6f3dbabe1507ec7ba00/src/images/profile-page.png


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/src/index.css:
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 1 | body {
 2 |   margin: 0;
 3 |   padding: 0;
 4 |   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
 5 |     "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
 6 |     sans-serif;
 7 |   -webkit-font-smoothing: antialiased;
 8 |   -moz-osx-font-smoothing: grayscale;
 9 |   background: #f4f4f4;
10 | }
11 | 
12 | code {
13 |   font-family: source-code-pro, Menlo, Monaco, Consolas, "Courier New",
14 |     monospace;
15 | }
16 | 
17 | .container {
18 |   width: 100%;
19 |   margin: 0 auto;
20 |   overflow: hidden;
21 | }
22 | 
23 | @media(min-width: 992px) {
24 |   .container {
25 |     width: 50%;
26 |     margin: 0 auto;
27 |     overflow: hidden;
28 |   }
29 | }
30 | 
31 | .container form {
32 |   margin: 2em;
33 |   padding: 2em;
34 |   box-shadow: 3px 3px 15px 0 #dadada;
35 | }
36 | 
37 | @media(min-width: 992px) {
38 |   .container form {
39 |     margin: 5em;
40 |     padding: 4em;
41 |     box-shadow: 3px 3px 15px 0 #dadada;
42 |   }
43 | }
44 | 
45 | .profile-container {
46 |   margin: 2em;
47 |   padding: 2em;
48 |   box-shadow: 3px 3px 15px 0 #dadada;
49 |   display: flex;
50 |   justify-content: center;
51 |   align-items: center;
52 |   flex-direction: column;
53 |   text-align: center;
54 | }
55 | 
56 | .user-snippet {
57 |   background: #F15F79;
58 |   padding: 40px;
59 |   width: 150px;
60 |   height: 150px;
61 |   margin: 50px;
62 |   border-radius: 75px;
63 | }
64 | 
65 | .user-snippet h1 {
66 |   color: #ffffff;
67 |   text-align: center;
68 |   padding-top: 16px;
69 | }
70 | 


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/src/index.js:
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 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import './index.css';
 4 | import App from './App';
 5 | import * as serviceWorker from './serviceWorker';
 6 | 
 7 | ReactDOM.render(<App />, document.getElementById('root'));
 8 | 
 9 | // If you want your app to work offline and load faster, you can change
10 | // unregister() to register() below. Note this comes with some pitfalls.
11 | // Learn more about service workers: http://bit.ly/CRA-PWA
12 | serviceWorker.unregister();
13 | 


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/src/logo.svg:
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1 | <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
2 |     <g fill="#61DAFB">
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8 | 


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/src/serviceWorker.js:
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  1 | // This optional code is used to register a service worker.
  2 | // register() is not called by default.
  3 | 
  4 | // This lets the app load faster on subsequent visits in production, and gives
  5 | // it offline capabilities. However, it also means that developers (and users)
  6 | // will only see deployed updates on subsequent visits to a page, after all the
  7 | // existing tabs open on the page have been closed, since previously cached
  8 | // resources are updated in the background.
  9 | 
 10 | // To learn more about the benefits of this model and instructions on how to
 11 | // opt-in, read http://bit.ly/CRA-PWA
 12 | 
 13 | const isLocalhost = Boolean(
 14 |   window.location.hostname === 'localhost' ||
 15 |     // [::1] is the IPv6 localhost address.
 16 |     window.location.hostname === '[::1]' ||
 17 |     // 127.0.0.1/8 is considered localhost for IPv4.
 18 |     window.location.hostname.match(
 19 |       /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
 20 |     )
 21 | );
 22 | 
 23 | export function register(config) {
 24 |   if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
 25 |     // The URL constructor is available in all browsers that support SW.
 26 |     const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
 27 |     if (publicUrl.origin !== window.location.origin) {
 28 |       // Our service worker won't work if PUBLIC_URL is on a different origin
 29 |       // from what our page is served on. This might happen if a CDN is used to
 30 |       // serve assets; see https://github.com/facebook/create-react-app/issues/2374
 31 |       return;
 32 |     }
 33 | 
 34 |     window.addEventListener('load', () => {
 35 |       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
 36 | 
 37 |       if (isLocalhost) {
 38 |         // This is running on localhost. Let's check if a service worker still exists or not.
 39 |         checkValidServiceWorker(swUrl, config);
 40 | 
 41 |         // Add some additional logging to localhost, pointing developers to the
 42 |         // service worker/PWA documentation.
 43 |         navigator.serviceWorker.ready.then(() => {
 44 |           console.log(
 45 |             'This web app is being served cache-first by a service ' +
 46 |               'worker. To learn more, visit http://bit.ly/CRA-PWA'
 47 |           );
 48 |         });
 49 |       } else {
 50 |         // Is not localhost. Just register service worker
 51 |         registerValidSW(swUrl, config);
 52 |       }
 53 |     });
 54 |   }
 55 | }
 56 | 
 57 | function registerValidSW(swUrl, config) {
 58 |   navigator.serviceWorker
 59 |     .register(swUrl)
 60 |     .then(registration => {
 61 |       registration.onupdatefound = () => {
 62 |         const installingWorker = registration.installing;
 63 |         if (installingWorker == null) {
 64 |           return;
 65 |         }
 66 |         installingWorker.onstatechange = () => {
 67 |           if (installingWorker.state === 'installed') {
 68 |             if (navigator.serviceWorker.controller) {
 69 |               // At this point, the updated precached content has been fetched,
 70 |               // but the previous service worker will still serve the older
 71 |               // content until all client tabs are closed.
 72 |               console.log(
 73 |                 'New content is available and will be used when all ' +
 74 |                   'tabs for this page are closed. See http://bit.ly/CRA-PWA.'
 75 |               );
 76 | 
 77 |               // Execute callback
 78 |               if (config && config.onUpdate) {
 79 |                 config.onUpdate(registration);
 80 |               }
 81 |             } else {
 82 |               // At this point, everything has been precached.
 83 |               // It's the perfect time to display a
 84 |               // "Content is cached for offline use." message.
 85 |               console.log('Content is cached for offline use.');
 86 | 
 87 |               // Execute callback
 88 |               if (config && config.onSuccess) {
 89 |                 config.onSuccess(registration);
 90 |               }
 91 |             }
 92 |           }
 93 |         };
 94 |       };
 95 |     })
 96 |     .catch(error => {
 97 |       console.error('Error during service worker registration:', error);
 98 |     });
 99 | }
100 | 
101 | function checkValidServiceWorker(swUrl, config) {
102 |   // Check if the service worker can be found. If it can't reload the page.
103 |   fetch(swUrl)
104 |     .then(response => {
105 |       // Ensure service worker exists, and that we really are getting a JS file.
106 |       const contentType = response.headers.get('content-type');
107 |       if (
108 |         response.status === 404 ||
109 |         (contentType != null && contentType.indexOf('javascript') === -1)
110 |       ) {
111 |         // No service worker found. Probably a different app. Reload the page.
112 |         navigator.serviceWorker.ready.then(registration => {
113 |           registration.unregister().then(() => {
114 |             window.location.reload();
115 |           });
116 |         });
117 |       } else {
118 |         // Service worker found. Proceed as normal.
119 |         registerValidSW(swUrl, config);
120 |       }
121 |     })
122 |     .catch(() => {
123 |       console.log(
124 |         'No internet connection found. App is running in offline mode.'
125 |       );
126 |     });
127 | }
128 | 
129 | export function unregister() {
130 |   if ('serviceWorker' in navigator) {
131 |     navigator.serviceWorker.ready.then(registration => {
132 |       registration.unregister();
133 |     });
134 |   }
135 | }
136 | 


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